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                            2017-01-15
                        
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                <p>移动端轮播图图片个数：想实现自动滚动与无缝连接滑动需要图片＋2，<br>这时为了精确最好考虑一下个数问题，即1除以+2后的总个数应该能整除，如1/8 即6张不同图片可以<br><br><br><figure class="highlight plain"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div></pre></td><td class="code"><pre><div class="line">//过度应该加给ul而不是li，</div><div class="line">//三张图片时，以ul为基准移动1/5,下面的li占ul的1/5</div><div class="line">#lbt ul&#123;</div><div class="line">    position: absolute;</div><div class="line">    width: 500%;</div><div class="line">    /* 不能是left,应该是translate */</div><div class="line">    transform: translateX(-20%);</div><div class="line">	transition: all 0.2s linear;</div><div class="line">&#125;</div><div class="line">#lbt ul li&#123;</div><div class="line">    float: left;</div><div class="line">    width: 20%;</div><div class="line">&#125;</div></pre></td></tr></table></figure></p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div></pre></td><td class="code"><pre><div class="line">//8张图片时，以ul为基准移动1/10,下面的li占ul的1/10</div><div class="line">.jd_banner ul:first-child&#123;</div><div class="line">    width: 1000%;</div><div class="line">    transform: translateX(-10%);</div><div class="line">    -webkit-transform: translateX(-10%);</div><div class="line">&#125;</div><div class="line">.jd_banner ul:first-child li&#123;</div><div class="line">    width:10%;</div><div class="line">    float: left;</div><div class="line">&#125;</div></pre></td></tr></table></figure>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div></pre></td><td class="code"><pre><div class="line"> //移动时，过度应该加给ul而不是li，然而下面代码使移动有了问题</div><div class="line"> var pie=1;  </div><div class="line">  var timed=setInterval(function()&#123;</div><div class="line">   pie++;</div><div class="line">   box.style.transform = &apos;translateX(&apos;+width*-pie+&apos;px)&apos;;</div><div class="line">   &#125;, 1000); </div><div class="line"></div><div class="line">    box.addEventListener(&apos;transitionend&apos;,function () &#123;</div><div class="line">        if (pie&gt;=lis-1) &#123;</div><div class="line">          pie=1;</div><div class="line">//这时需要移除过度，瞬间移回</div><div class="line">          box.style.transition=&apos;none&apos;;</div><div class="line">          box.style.webkitTransition = &apos;none&apos;;</div><div class="line">          box.style.transform = &apos;translateX(&apos;+width*-pie+&apos;px)&apos;;   </div><div class="line">        &#125;;</div><div class="line">  &#125;);</div><div class="line">  //出了问题，因为移除过度后所有的过度都消失了，导致第二次的效果错乱了，</div><div class="line">  因此需要重新添加过度</div><div class="line">    var timed=setInterval(function()&#123;</div><div class="line">   pie++;</div><div class="line">   //重新添加过度</div><div class="line">   box.style.transition=&apos;all 0.2s&apos;;</div><div class="line">   box.style.transform = &apos;translateX(&apos;+width*-pie+&apos;px)&apos;;</div><div class="line">   &#125;, 1000);</div></pre></td></tr></table></figure>

                
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